Method and Arrangement in a Wireless Communication Network

1. An apparatus for requesting a status report from a node of a wireless communication network, the status report comprising at least one of positive and negative acknowledgement of data to be received by the node, the apparatus comprising: a transmitter, adapted to transmit a sequence of data units or data unit segments to be received by the node; a counting mechanism, adapted to: decrease a first counter based on a number of data units transmitted; decrease a second counter based on a number of bytes of data transmitted; a first comparison unit, adapted to compare a count of the first counter to a first threshold; a second comparison unit, adapted to compare a count of the second counter to a second threshold; a requesting unit, adapted to request a status report from the node if either the count of the first counter is less than or equal to the first threshold or the count of the second counter is less than or equal to the second threshold; a first resetting unit, adapted to reset the first counter to a first predefined value if either the count of the first counter is less than or equal to the first threshold or the count of the second counter is less than or equal to the second threshold, and a second resetting unit, adapted to reset the second counter to a second predefined value if either the count of the first counter is less than or equal to the first threshold or the count of the second counter is less than or equal to the second threshold.

2. The apparatus of claim 1 , wherein the first threshold equals zero and the second threshold equals zero.

3. The apparatus of claim 1 , wherein: the first resetting unit is further adapted to obtain the first predefined value from a higher layer; and the second resetting unit is further adapted to obtain the second predefined value from the higher layer.

4. The apparatus of claim 3 , wherein the higher layer comprises a Radio Resource Control (RRC) layer.

5. The apparatus of claim 1 , wherein the second resetting unit is further adapted to: obtain a number of configured or active radio bearers; and obtain the second predefined value by obtaining a parameter value representing a bytes threshold limit value and dividing that parameter value by the obtained number of configured or active radio bearers.

6. The apparatus of claim 1 , wherein the apparatus comprises a user equipment.

7. The apparatus of claim 1 , wherein the apparatus comprises a base station, a Radio Network Controller (RNC), or an evolved NodeB.